活性MgO定量分析标准方法的比较研究

Study on Contrast of Quantitative Analysis Standard Method of Active Magnesium Oxide

中文关键词:  活性氧化镁  水合法  镁水泥

英文关键词:Active magnesium oxide  Hydration method  Magnesium oxychloride cement  

中文摘要:

      用WB和JC标准水合法测定轻烧MgO粉的活性MgO含量，对测定结果进行方差和误差分析，并研究了水化时间对测定结果的影响。结果表明，两种方法存在显著性差异，WB和JC水合法的平均相对误差分别为1．31％和-19．85％。WB水合法精密度远高于JC水合法。以WB水合法为基准，JC水合法的平均相对误差大于-20％，远远超过行业标准中规定的±3％。因此，对于镁水泥原料MgO中活性含量的定量分析，不能采用JC方法，必须采用WB方法。此外，发现水化3h已经接近活性氧化镁的水化平衡，为修订WB标准方法提供了参考依据。

英文摘要:

      In this paper,WB and JC standard hydration methods were used to test active magnesium oxide content of light-burned magnesia,the results were analyzed by deviation and error,and the effect of hydration time to determinated result was studied.The results showed that two methods existed significant difference,average relative error of WB and JC hydration methods were 1.31%and-19.85%,precision of WB hydration method was better than JC's.To use WB hydration methods was standard,average relative error of JC exce...